I’m also an admin on the same forum.
The exact version is 3.5.0.beta8-dev (de5d29c7ff).
Manually writing [grid] [/grid] correctly renders the grid.
Safe mode doesn’t fix the issue.
Nothing specific in /logs and no errors in the JS console.
Is there any other related setting besides Experimental auto grid images? I also reviewed all the modified settings on the instance and didn’t see anything that could interfere with that.
I’d be happy to provide more info it I know where to look 